{php}
	require_once $this->_get_plugin_filepath('shared','explode_param');
	$include = smarty_explode_param($this, 'include');
	$exclude = smarty_explode_param($this, 'exclude');
	$this->assign('vars', $include
		? array_extract($_GET, $include)
		: array_diff_key($_GET, array_flip($exclude)));
{/php}
{foreach from=$vars key=param item=value}
	<input type="hidden" name="{$param}" value="{$value}" />
{/foreach}
